/**
 * Copyright (c) 2002-2011 旭鸣信息
 * All rights reserved. 
 * File：DDLPrefix.java
 * History:
 *       May 11, 2012: Initially created, liuzhi.
 */
package com.xteam.ecsystem.dao.Impl;

/**
 * 数据定义语言关键字
 * 
 * @author liuzhi
 *
 */
public class DDLPrefix {
	
	public static final String SQL_DELETE	= " DELETE ";
	public static final String SQL_UPDATE	= " UPDATE ";
	public static final String SQL_SET		= " SET ";
	public static final String SQL_FROM		= " FROM ";
	public static final String SQL_WHERE	= " WHERE ";
	public static final String SQL_AND		= " AND ";
	public static final String SQL_ON		= " ON ";
	public static final String SQL_OR		= " OR ";
	public static final String SQL_IN		= " IN ";
	public static final String SQL_SELECT	= " SELECT ";
	public static final String SQL_NOTIN	= " NOT IN ";
	public static final String SQL_ORDERBY	= " ORDER BY ";
	public static final String SQL_DESC		= " DESC ";
	public static final String SQL_LIKE		= " LIKE ";
	public static final String SQL_GROUPBY  = " GROUP BY ";
	public static final String SQL_HAVING   = " HAVING ";
}
